
<div >
  首页
</div>
<span>{{1+1}}</span>
<ul>
  <li *ngFor="let ob of obs">
    <span>{{ob.name}}</span>
    <span>{{ob.age}}</span>
  </li>
</ul>
<nav>test global color</nav>
<div class="hover">hover test</div>
